We are happy to announce that we are increasing the the number of Alternate keys that can be used in a table in Dataverse. (Alternate keys were previously known as Entity keys.)
Prior to this change, each table was limited to 5 Alternate keys. We have heard requests to increase this limit to help address more complicated scenarios. The new limit is now 10 Alternate keys per table. This change is immediately available for all online Dataverse organizations.
No user actions are required to use this new feature.